ed-i
ed-i
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If you really mean cos 2x, and not cos^2 x, then: cos 2x - 4 cos x - 5 = 0 (2 cos^2 x - 1) - 4 cos x - 5 = 0 2 cos^2 x - 4 cos x - 6 = 0 cos^2 x - 2 cos x - 3 = 0 (cos x - 3)(cos x + 1) = 0 cos x - 3 = 0 or cos x + 1 = 0 cos x = 3 (reject).…
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If you really mean cos 2x, and not cos^2 x, then: cos 2x - 4 cos x - 5 = 0 (2 cos^2 x - 1) - 4 cos x - 5 = 0 2 cos^2 x - 4 cos x - 6 = 0 cos^2 x - 2 cos x - 3 = 0 (cos x - 3)(cos x + 1) = 0 cos x - 3 = 0 or cos x + 1 = 0 cos x = 3 (reject).…
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5 cis 240° = 5 (cos 240° + i sin 240°) = 5(-1/2 + i (-√3/2)) = -5/2 - 5√3/2 i
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5 cis 240° = 5 (cos 240° + i sin 240°) = 5(-1/2 + i (-√3/2)) = -5/2 - 5√3/2 i
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a_2 = 100 = ar a_4 = 64 = ar^3 r^2 = 64/100 r = 8/10 = 4/5 a(4/5) = 100 a = 125 4a = 500 S_n = 125 (1 - 0.8)^n)/(1 - 0.8) = 125 (1 - 0.8^n)/0.2 > 500 125 (1 - 0.8^n) > 100 1 - 0.8^n > 0.8 0.2 > 0.8^n ln 0.2 > n ln 0…
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x = 1, y = 2, z = 3
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x = 1, y = 2, z = 3
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22 • 48 = 1056 in^2 1056 in^2 • $1.20/ft^2 = $1267.20 That would be using only 1 layer of charcoal.
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22 • 48 = 1056 in^2 1056 in^2 • $1.20/ft^2 = $1267.20 That would be using only 1 layer of charcoal.
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If i is a zero, so is -i. Id 6i is a zero, so is -6i. (x - i)(x + i)(x - 6i)(x + 6i) = 0 (x^2 + 1)(x^2 + 36) = 0 x^4 + 37x^2 + 36 = 0 f(x) = x^4 + 37x^2 + 36
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If i is a zero, so is -i. Id 6i is a zero, so is -6i. (x - i)(x + i)(x - 6i)(x + 6i) = 0 (x^2 + 1)(x^2 + 36) = 0 x^4 + 37x^2 + 36 = 0 f(x) = x^4 + 37x^2 + 36
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x - 2, x - 1, x z - 100, z - 98, z - 96 1. A 2. C 3. B (actually, at least two equal or congruent sides) 4. B C = πd
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x - 2, x - 1, x z - 100, z - 98, z - 96 1. A 2. C 3. B (actually, at least two equal or congruent sides) 4. B C = πd
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x - 2, x - 1, x z - 100, z - 98, z - 96 1. A 2. C 3. B (actually, at least two equal or congruent sides) 4. B C = πd
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x - 2, x - 1, x z - 100, z - 98, z - 96 1. A 2. C 3. B (actually, at least two equal or congruent sides) 4. B C = πd
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x - 2, x - 1, x z - 100, z - 98, z - 96 1. A 2. C 3. B (actually, at least two equal or congruent sides) 4. B C = πd
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x - 2, x - 1, x z - 100, z - 98, z - 96 1. A 2. C 3. B (actually, at least two equal or congruent sides) 4. B C = πd
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x = 1, y = 2, z = 3
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5 cis 240° = 5 (cos 240° + i sin 240°) = 5(-1/2 + i (-√3/2)) = -5/2 - 5√3/2 i
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If you really mean cos 2x, and not cos^2 x, then: cos 2x - 4 cos x - 5 = 0 (2 cos^2 x - 1) - 4 cos x - 5 = 0 2 cos^2 x - 4 cos x - 6 = 0 cos^2 x - 2 cos x - 3 = 0 (cos x - 3)(cos x + 1) = 0 cos x - 3 = 0 or cos x + 1 = 0 cos x = 3 (reject).…